public async Task EmailSendAsync(string aFrom, string aTo, string aSubject, string aMessage,
IEnumerable<string> aAttachments = null, bool aReadConfirmation = false, bool aReceiptConfirmation = false)
{
using (var mail = new MailMessage())
{
if (aReadConfirmation)
mail.Headers.Add("Disposition-Notification-To", aFrom);
if (!IsEmailValid(aFrom))
throw new ArgumentException("Sender address \"{aFrom}\" is not valid");
mail.From = new MailAddress(aFrom.Trim());
if (!IsEmailValid(aTo))
throw new ArgumentException("Recipient address \"{aTo}\" is not valid");
mail.To.Add(aTo.Trim());
mail.Subject = aSubject;
mail.Body = aMessage;
if (aAttachments != null)
foreach (var attachment in aAttachments)
mail.Attachments.Add(new Attachment(attachment));
if (aReceiptConfirmation)
mail.DeliveryNotificationOptions = DeliveryNotificationOptions.Delay |
DeliveryNotificationOptions.OnFailure |
DeliveryNotificationOptions.OnSuccess;
using (var smtpClient = new SmtpClient())
await smtpClient.SendMailExAsync(mail);
}
}
